Battery charger



FIG. 1 is a front elevational view of a battery charger in accordance with my invention thereof;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top elevational view thereof;

FIG. 6 is a bottom elevational view thereof; and,

FIG. 7 is a perspective view of a battery charger. 

The ornamental design for battery charger, as shown and described. 